Cover or closure for receptacles.



A. P. ANDERSON.

COVER 0R' GLOSURE FOR RECEPTCLES.V 1 ArPLIoATI'oR FILED DB0. a, 1907. Bmlmwnn rma. a, 1pm.`

150.535,'841..v V PatendAugmwla 5. y v @7 a I I m@ @MM wr/2% /i fw UN'rraD sfrafrns PATENT oFFi'oE.

ALEXANDER P. ANDERSON, OF CHICAGO, ILLINOIS.

COVER R CLOSURE FOR RECEPTACLES.

i i Specification of Letters Patent.

Patented Aug. 20, 1912.

Original application led August 3, 1906, Serial No. 329,030. Divided and this application tiled December 9, 1907, Serial No. 405,820. Renewed February 8, 1912.

Serial No. 676,440.

and State of Illinois, have invented new and useful Improvements in Covers or Closures for Receptacles, of which the followingis a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this j specification.

My invention relates to improvements in covers or closures for receptacles, and has for its object the provision of a form of cover whereby a tight, sealed joint is readily efected between opposing contacting surfaces on the cover and the receptacle.

This subject-matter herein set forth has been divided out of my copending case, Serial No. 329,030, filed August 3, 1906,' so that the present application is a divisional one of my aforesaid copendin case.

Referring to the drawings, w erein I have illustrated Ya preferred embodiment of my inVention,-

Figure 1 is partly a longitudinal sectional view of a receptacle provided with my iniproved cover, a fastening device for the cover being indicated in dotted lines; Fig. 2 is a front end elevation of Fig. l; and Fig. 3 is a view takenon line 3 3 of Fig. 1, looking in the direction indicated by the arrows.

A receptacle 1 is provided at one end with a lug 2 having a slot 3. The cover l carries a pair of spaced lugs 5 arranged to straddle the projection or lug 2 on the receptacle, as clearly shown in Fig. 2. A connecting pin 6. passes through openings in the lugs 5 and through the slot 3 in the Iprojection 2. Any suitabtle locking device, such as a key 7 ,may be employed to prevent displacement of the pin., It will be observed from Fig. 1 that the slotted pivotal connection between the cover and the receptacle permits thecover to have a pivotal as well as a bodily or lonitudinal movement.v The latter movement is made possible by the movement ofthe v in 6 in the slotjor elongated opening 3.

he purpose of such longitudinal movement will presently be made clear.`

, The cover is rovidcd with a circular lip 8, and in the depression or recess 9 thus formed is located a gasket 10 of some soft or yieldable material, as, for instance, lead. This gasket is held in place by a clamping plate or disk 11 secured to the cover by screws or'bolts 12 which pass through the gasket/into the cover, as indicated by dotted ines in Fi 1. In the particular example shape of a ring through which extends the lillustrated in Fig. 1, thegaskct is in the boss or projection 11 on the clamping-plate. By causing said projection to extend snugly into the accommodating hollow 4 in the cover, I for the c amping-plate on the cover, thereb increasing the firmness and security witi which the gasket is maintained in place. To prevent the clamping-plate from interfering with the proper seating of the cover upon the receptacle when the clamping-plate of projects beyond the gasket, it is' necessary to make the plate of slightly smaller diameter than the internal diameter of the receptacle at that portion, in order that the plate may be harbored within the receptacle, as shown in Fig. 1.

Any suitable locking means may be employed for holding the cover clamped upon the receptacle. F or the sake of illustration, I have indicated in dotted lines in Fig. 1 a

rovide additional centering means convenient form of bail 13 which may be surface. ien the cover is pressed against the receptacle, the projections or rotuberances constituting the roughene surface will enter or sink into the yieldable material of thegasket as indicated in Fig. 1, 'causing the coperating face of the gasket to assume a corres Iondin ly rou liencd surface, as shown at t in Igig. 3. lilot only is by this meansthe contact-area between the cover and the'l receptacle increased, but the contact between the parts is so firm and compact thatwhat mi ht be termed a sealed joint is effected. This is particplarly true if the gasket be of some soft metal, such as lead, into which the roughened surface of the receptacle will sink with great firmness. Crowding out of the material of the gasket is prevented by the surrounding lip 8. .The

slotted pivotal connection, above referred to, between the c over and the receptacle plays quite an important factor in the production' of a sealed joint. Any wear'or crowding out of the gasket due to repeated closing is compensated for by the slight bodily movement of the cover tocause the same to be seated tightly upon the receptacle with even pressure all around, whatever the conditionv ofthe gasket. Were it not for this bodily 0r longitudinal movement of the cover, the

, gasket would be subjectedto greater pressure at the portion nearest the pivot, since that portion would come into contact with the receptacle before the; opposite portionof the gasket would.

Although I have shown the roughened surface produced by means of circular corrugations, it is plain. to see that it might be readily produced in various other ways. Furthermore, although the roughened surface isshown on an enlarged portion 18 at the openend of the receptacle, itis understood tha-tithe latter itself may be constructed ofsuch thickness that a special en l. The combination with a receptacle, ofv

a cover therefor connected to one end of the receptacle so as to have both pivotal .and bodily movement, means for clamp-ing said cover in ositionaa soft-metal gasket carried by said cover, a clamping plate secured to the cover for holding'the gasket in posi tion, the diameterof said plate being sliuhtly smaller than the internal diameter oA the receptacleA at said end, whereby the said plate is caused to fit snugly into the receptacle to enable the cover to be accurately closed, and a roughened surface on said end of the receptacle to cooperate with the gas` on the inner face thereof, a soft-metal ring-A shaped gasket in said recess, a clamping plate 'having a boss extending through said gasket, said plate-being secured to the cover and holding the gasket `:in position and being arranged to fit within said receptacle,

'and a roughened surface on said end of the receptacle to coperate withthe gasket, to enable the cover to, be accurately closed, to effect a sealed joint.

3. The combination with a receptacle havinga thickened wall at the open end thereof, of a cover arranged-.to close said end of the receptacle, said cover 'having slot-and-pin connection with the receptacle, means for clamping said cover in position, a softmetal gasket carried by the cover, a plate secured to the cover for clamping'said gasket inpo- K sition and extending into the receptacle-to engage therein and center the cover with respect thereto, and a roughened surface on said end to coperate with the gasket and effect a sealed joint between the receptacle and cover.

L The combination with a receptacle, of acover therefor, means connecting the cover to one end of the receptacle so as to ermit pivotal movement of the cover and a so independent movement thereof axially of the mouth of the receptacle to enable the same to be accurately closed, means for clamping said cover in osition, a soft-metal gasket carried by said) cover, a lip on said cover extending around said gasket, a plate arranged'to engage within the receptacle for centering the cover therein, said plate being secured to the cover and extending over a portion of the gasket for clamp-ing said-gasket in position, the wall ofthe receptacle beinfr thickened around the mouth thereof, and lbeing roughened to coperate with the gasket to effect a sealed joint.

In witness whereof, I have hereunto sub-l scribed my name in the presence of two :wit-

nesses.

ALEXANDER P. ANDERSON.

Cvnfrccv'fion'sin Leiters Patent No.1 ,(135,841. l

l.. :Signed and sealed this 29th dayy of October, A. D., v19,12. l

It is hereby 'certified that'.4 in Letters Patent No. 1,035,841, granted August 20, 1912,

-upon the application ofAlexander P. nderson, of Chicago, Illinois, for an improve` ment in Covers orClosures forv Receptacles, errors appear in the printed specifiy cation 'requiring correction as follows: Page'l, line 7,2, strike out the Word ot';

same page, line 92, for the capital letter I read In; and that the said Letters Ilatent should be read with these corrections therein that the same may conform to Y the record of the case in the Patent Oice.

c. o; 'BILLINGs [SEAL] y i I l Acting Comosonerlof Patente. 

